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[UPDATE] Photos of RCC hole made during 7/7/03 test now online
larry wrote: Also I recall seeing photos of Columbia when it was being readied for flight. The Panels were black not the gray of the test panels. I believe you recall incorrectly. Here's a link to a launch photo of a relatively recent shuttle launch (Endeavour, STS100, April 2001) http://spaceflight.nasa.gov/gallery/...01pp-0832.html Click on the low res(*) link, and look at the leading edge of the wing (near the USofA flag), and the shuttle's nosecap. Both are medium dark gray, the same as the RCC panels used in yesterday's test. Perhaps you are confusing the black tiles with the RCC panels? (*) -- or the high res link... |
#12
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[UPDATE] Photos of RCC hole made during 7/7/03 test now online
On or about Mon, 7 Jul 2003 23:10:36 -0500, Doug . .
made the sensational claim that: Well, from what I understand, the actual damage to Columbia was probably more like 6-10 inches in its greatest dimension, and possibly much smaller in its smallest dimension. (This comes from the analysis of the internal heating that I've seen referenced -- it would seem to indicate a breach of the above-stated size.) Now, at 81 seconds, you're well past maximum aerodynamic pressure and the air is thinning rapidly. I doubt that a hole the size that was likely created would have caused any detectable trajectory deviations. (Of course, I'm just speaking from a gestalt sense, there are engineers here who can give you a much more authoritative answer.) My thought now is the hit created a hinged flap, which got thrown loose to become the Day 2 mystery object. The rest of ascent, and maneuvering around threw it this way and that and finally it just seperated. -- This is a siggy | To E-mail, do note | This space is for rent It's properly formatted | who you mean to reply-to | Inquire within if you No person, none, care | and it will reach me | Would like your ad here |
#13
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[UPDATE] Photos of RCC hole made during 7/7/03 test now online
LooseChanj wrote:
snipped My thought now is the hit created a hinged flap, which got thrown loose to become the Day 2 mystery object. The rest of ascent, and maneuvering around threw it this way and that and finally it just seperated. There could have been some debris trapped inside the wing which later floated out through the hole. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 80,000 Newsgroups - 16 Different Servers! =----- |
#14
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[UPDATE] Photos of RCC hole made during 7/7/03 test now online
"Jorge R. Frank" wrote in message ... "Cyberia" wrote in : OM wrote: ...From CNN: http://www.cnn.com/2003/TECH/space/0...e.investigatio n.ap/ index.html ...Tom Wheeler take note: Now *that* is a hole. OM The foam in the test appeared to exit the impact intact. How does this jive with the near total disintegration into dust seen during Columbia's launch? Wouldn't that disintegration consume a lot of the impact energy, thus preventing so much wing damage? The first impact test against real RCC was a "corner" impact, and caused only a small crack in the RCC, but completely disintegrated the foam in a manner similar to that seen on STS-107. Today's test was a full-side impact, and caused a massive hole in the RCC, while leaving the foam more intact. Both tests used the same foam mass and speed. The aerothermal evidence suggests that the actual size of the hole in Columbia was on the order of 6-10 inches, rather than the 16 inches seen in today's test. Taken together, the above facts suggest 1) a correlation between angle of impact and energy transfer; i.e. a corner hit results in the foam absorbing more energy and disintegrating while causing only minor RCC damage, while a full-side hit transfers more energy to the RCC and causes more damage, and 2) that the foam tests have successfully "bracketed" the probable damage seen on the actual flight, and that the foam that hit STS-107 struck at an angle somewhere in between a "corner-only" hit and a full-side hit. Just my opinion, of course. -- Houston You definitely have a problem.. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 80,000 Newsgroups - 16 Different Servers! =----- |
#15
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[UPDATE] Photos of RCC hole made during 7/7/03 test now online
In article ,
"Jorge R. Frank" wrote: Taken together, the above facts suggest 1) a correlation between angle of impact and energy transfer; i.e. a corner hit results in the foam absorbing more energy and disintegrating while causing only minor RCC damage, while a full-side hit transfers more energy to the RCC and causes more damage, and 2) that the foam tests have successfully "bracketed" the probable damage seen on the actual flight, and that the foam that hit STS-107 struck at an angle somewhere in between a "corner-only" hit and a full-side hit. I think one of the factors you need to consider when examining visuals of these foam impact test results is the fact that these results are for foam that is not rotating. I understand the impact tests have been conducted at slightly higher velocity in order to compensate for the lack of rotational energy. However, rotation of the foam at impact would (it seems to me) impart greater lateral velocity to the fragments after impact, thus resulting in the more "shower-like" spray of debris seen on the actual launch footage. Just something to consider if/when people comment that the latest test results don't look like the launch films. -- Herb Schaltegger, Esq. Chief Counsel, Human O-Ring Society "I was promised flying cars! Where are the flying cars?!" ~ Avery Brooks |
#16
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[UPDATE] Photos of RCC hole made during 7/7/03 test now online
There's another definition of "jive" that escapes me at the moment.
I don't have a reference but i beieve it is iften used to connote dishonesty or intentionally misleading statements. Of course I'm a white guy so what the hell do I know. |
#17
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[UPDATE] Photos of RCC hole made during 7/7/03 test now online
Bruce Palmer wrote:
From Webster's Revised Unabridged Dictionary (1913) (web1913): Jibe \Jibe\, v. i. 1. (Naut.) To change a ship's course so as to cause a shifting of the boom. See {Jibe}, v. t., and {Gybe}. 2. To agree; to harmonize. [Colloq.] --Bartlett. Heh, heh. Nabbed by the internet colloquialism police. :-) -- --------------- SeeYa ! -------------- Hello....... Is this thing on ? |
#18
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[UPDATE] Photos of RCC hole made during 7/7/03 test now online
David Higgins wrote:
larry wrote: Also I recall seeing photos of Columbia when it was being readied for flight. The Panels were black not the gray of the test panels. I believe you recall incorrectly. Here's a link to a launch photo of a relatively recent shuttle launch (Endeavour, STS100, April 2001) Then are there two colors of RCC panels, black and gray? Why the difference in the colors in the photo "fitted RCC layout" at http://www.caib.us/news/photos/shutt...y/default.asp# http://spaceflight.nasa.gov/gallery/...01pp-0832.html Click on the low res(*) link, and look at the leading edge of the wing (near the USofA flag), and the shuttle's nosecap. Both are medium dark gray, the same as the RCC panels used in yesterday's test. Perhaps you are confusing the black tiles with the RCC panels? (*) -- or the high res link... |
#19
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[UPDATE] Photos of RCC hole made during 7/7/03 test now online
On Mon, 07 Jul 2003 23:50:31 -0500, larry
wrote: Also I recall seeing photos of Columbia when it was being readied for flight. The Panels were black not the gray of the test panels. I don't know what you remember, but Columbia's (and all the Shuttles, including Enterprise's) RCC panels were always gray. Here's Columbia on STS-1 in 1981... http://grin.hq.nasa.gov/IMAGES/MEDIU...000-000650.jpg http://www.dfrc.nasa.gov/gallery/pho...EC81-15104.jpg Brian |
#20
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[UPDATE] Photos of RCC hole made during 7/7/03 test now online
Scott Millington wrote in message
PLONK you can read CARRIE here and in the SUNDAY NEWSPAPER COMICS. |
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